Hydrostatic axial piston machine

US6155798A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Horst Deininger · Alzenau, DE
• Eckehart Schulze · Diez, DE

Key dates

• Filing date: Mar 3, 1997
• Grant date: Dec 5, 2000
• Expiry date: Mar 3, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B1/295
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A hydrostatic axial piston machine employs a swash plate construction in which the diagonal position of the swash plate can be controlled by at least one positioning piston pressurized with a control pressure. A control valve is in a line which leads to at least one positioning piston. A simple electrical-hydraulic control of the swash plate can be accomplished by the electrical actuation of the control valve. The control valve may be in the form of a rotary disk valve which can be actuated by a stepper motor.